1. Leah Guzman and David Edmunds Environmental Program Specialists Leah.guzman@alaska.gov David.edmunds@alaska.gov The Ground Water Rule Workshop Department of Environmental Conservation September 22-23, 2009 1

2.  Treatment Technique Compliance Monitoring  Monitoring Reporting 2

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4.  Treatment Technique Compliance Monitoring ◦ 4-log treatment of viruses using treatment approved by the state  Chemical Disinfection  Entry point  Distribution residual concentration  Continuous disinfection for systems of > 3,300  Ultraviolet  Luminescence (mJ/cm2)  Setpoint (minimum dosage)  Flow  Calibration check  Filtration  Conventional  Direct  Slow Sand  Diatomaceous Earth Alternative Filtration  Membrane  Bag or Cartridge  Reverse Osmosis 4

5. Compliance Monitoring 5

6.  Reporting requirements for Ground Water Rule: ◦ Source sample for positive routine ◦ Five additional samples for fecal indicator ◦ Monthly Assessment Source Monitoring if required ◦ Operator reports (compliance monitoring) 6

7.  Treatment Technique Compliance Monitoring Requirements  Monitoring Reporting 7